4. Edit Facebook Group Cover Image
At the top of your group, you can display a banner that you can use as a lead-gathering billboard. For this tactic, you need to offer a lead magnet that makes sharing an email address worthwhile. Remember that simply offering something for free isn’t enough because people know sharing an email exposes them to future promotions. Offer something truly valuable that your audience will want.
After you know what you’ll offer and what the landing page will be, create a 1640 x 920 pixel cover image with a call to action. This image is like a big banner ad for your lead magnet. In the image, identify your group with your branding in addition to advertising your lead magnet. You can create this image with a tool like Canva (both free and paid options), and then download the image.
When you’re ready to upload the image to your Facebook group, navigate to your group page, hover over the existing cover image, and click the Change Group Cover button in the upper right. Then click Upload Photo and select the photo you want to upload in the dialog box that appears. After you upload the image, drag it around until it’s positioned perfectly.
Although you can’t link your group cover image to your landing page, you can add a link in the image description. After you upload your image, click Add a Description.